VHF Channel 70 can be used for ( ).
A: distress and safety purposes
B: public correspondence purposes
C: ship to ship distress alert
D: A, B and C are all correct
A: distress and safety purposes
B: public correspondence purposes
C: ship to ship distress alert
D: A, B and C are all correct
举一反三
- 170. Frequencies specified for MSI should be used by A: authorized coast stations to broadcast MSI B: a ship station to report MSI to a public coast station C: a ship station to transmit distress alert D: authorized coast stations to transmit distress acknowledgement
- 66. DSC distress alert should direct to（ ）ln vicinity。 A: all stations B: coast stations C: ship stations nearby D: group of specified stations
- 24 For ship to shore distress alerts. you can use ( ) A: INMARSAT MES. EPIRB and DSC B: NAVTEX. NBDF and R/T C: INMARSAT MES. VHF and SART D: EFIRB. DSC and radar
- Revise the underlined part: The dictionary can be used for these purposes: to find word meanings, pronunciations, correct spellings, and looking up irregular verbs. Revision: The dictionary can be used for these purposes: to find word meanings, pronunciations, correct spellings, and _________________.
- 152. The "scan" function of VHF receiver is used to . A: monitor Ch 16 continuously and switching to either Ch 70 0r Ch 13 every 5 seconds B: scan Ch 16 for distress calls C: scan Ch 70 for distress alerts D: sequentially scan all or selected channels